Home / 8,988.77-12,403.14-5,212.32

Finding the Fourth Proportional to 8,988.77, 12,403.14 and 5,212.32

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Solution

The fourth proportional to 8,988.77, 12,403.14 and 5,212.32 is: 7,192.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.77 : 12,403.14 = 5,212.32 : x
  2. Step 2: Convert to fraction form
    8,988.77/12,403.14 = 5,212.32/x
  3. Step 3: Cross multiply
    8,988.77x = 12,403.14 × 5,212.32
  4. Step 4: Simplify right side
    8,988.77x = 64,649,097.95
  5. Step 5: Solve for x
    x = 64,649,097.95/8,988.77
  6. Step 6: Final answer
    x = 7,192.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.